“retrospective study”的概念、定义、翻译、参考文献-科学参考

单词	retrospective study
释义	retrospective study Encyclopedia 理学临床试验的自适应性设计释 retrospective study观察性研究在自然状态下对研究对象的特征进行观察、记录，并对结果进行描述和对比分析的研究。 Mathematics retrospective study回溯研究
随便看	generalized cross-validation generalized current generalized cylinder generalized de Bruijn digraph generalized decomposition generalized decomposition number generalized density of states generalized dependency generalized derivative generalized determinant generalized diagonally dominant matrix generalized diameter generalized difference equation generalized difference method generalized diffusion process generalized dimension generalized directional derivative generalized Dirichlet problem generalized displacement generalized displacement operator generalized distance generalized distribution generalized divisor function generalized dodecagon generalized drop-the-loser rule

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